e36 318is ignition problem

Hi guys , basically ave just bought maself a nice 318 as a possible track car , not be used on the road much , anyway a bought it as a non runner , very cheap , ignition barrel f**ked , the guy a bought it off said it was fine till the key kept turning one day , he tried fixing it and a think he just made it worse , as he's took it all apart , well as it stands the car doesnt start , it goes thru all the stages to start just doesnt turn over , all the lights com on the guages and so on , ave done sum reading and a believe a cant just replace the ignition barrel and key with another as they are coded to the ews/ecu ? correct me if am wrong , its my first BM
cant be botherd or really afford to go get the key coded at BMW as ave been told its £100+ , a had the idea of just changing the ecu for a <94 ecu with no ews as beeing a track car and garaged a dont mind it not having any alarm or immobilser , what a need advice on is can a just swap my ecu for one from a <94 ecu that doesnt have an ews ? or is there away to keep my setup but bypass the ews ? any help would be greatly apprieciated
and thanks in advance 


